Yamaha HS8S 8-Inch Powered Studio Subwoofer with 150W Class-D Amp, Crossover Controls, and Phase Switch - (B-Stock)

Powered subwoofer, 8" long stroke, 150 watt woofer, Dual XLR and 1/4" inputs, 2 balanced XLR outputs, Phase switch, Low/High variable cutoff, bass reflex cabinet